scope:

This standard contains the minimum requirements for the design, installation, acceptance, inspection, testing, and maintenance of hybrid fire-extinguishing systems that use a combination of atomized water and inert gas to extinguish fire.

The scope of this standard does not include systems that use only inert gas to achieve extinguishment. (See NFPA 2001.)

The scope of this standard does not include systems that use only atomized water (water mist) to achieve extinguishment. (See NFPA 750.)

The scope of this standard does not include twin fluid water mist systems that use inert gas to propel and/or atomize water mist droplets without generating a significant inert gas concentration in the protected space. (See NFPA 750.)

Purpose.

This standard is prepared for the use and guidance of those charged with the purchasing, designing, installing, testing, inspecting, approving, listing, operating, or maintaining of hybrid fire-extinguishing systems, in order that such equipment will function as intended throughout its life.